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RE: Creating a color palette

From: Schnabel, Stefan <stefan.schnabel@sap.com>
Date: Wed, 16 May 2007 08:49:12 +0200
Message-ID: <A0F55B8DE2D56245AE2D0578E57450CE02E2A50D@dewdfe25.wdf.sap.corp>
To: "Richard Schwerdtfeger" <schwer@us.ibm.com>, "Al Gilman" <Alfred.S.Gilman@IEEE.org>
Cc: "Becky Gibson" <Becky_Gibson@notesdev.ibm.com>, <wai-xtech@w3.org>, <wai-xtech-request@w3.org>
We at SAP would try first focuseable cells with background coloring and
title attribute filled and no images (except mayby a non-focuseable
spacer.gif for layout, but &nbsp; will do the job also, I think), so,
why having discrete images for each color? Rendering limitations?
a plus for clickable image map is that it allows for non-rectangle
shaped color-selection maps. what about having/demanding for
keyboard-navigable image-maps?


	From: wai-xtech-request@w3.org [mailto:wai-xtech-request@w3.org]
On Behalf Of Richard Schwerdtfeger
	Sent: Wednesday, May 16, 2007 3:36 AM
	To: Al Gilman
	Cc: Becky Gibson; wai-xtech@w3.org; wai-xtech-request@w3.org
	Subject: Re: Creating a color palette

	We had this call. The color palette should be a grid with cell
navigation. Each grid cell should have an image with title text
containing a translatable color, like red, and the RGB value.
	Rich Schwerdtfeger
	Distinguished Engineer, SWG Accessibility Architect/Strategist
	Chair, IBM Accessibility Architecture Review Board
	blog: http://www.ibm.com/developerworks/blogs/page/schwer
	 Al Gilman <Alfred.S.Gilman@IEEE.org>

				Al Gilman <Alfred.S.Gilman@IEEE.org> 
				Sent by: wai-xtech-request@w3.org 

				04/11/2007 03:40 PM



"Becky Gibson" <Becky_Gibson@notesdev.ibm.com>, wai-xtech@w3.org	




Re: Creating a color palette	

	At 3:21 PM -0400 11 04 2007, Becky Gibson wrote:
	>The dojo toolkit has a color palette for selecting colors. We
are planning
	>to implement this as a rectangular image map with color blocks
	>in a table layout.   Using an image map allows the actual
colors to still
	>remain visible in high contrast mode and it can be made
	>accessible.   I am wondering how to identify this component?
There is no
	>explicit role for color picker but it seems there should be
some role
	>given to the component so the user has some idea about
navigation.   Does
	>it make sense to mark this up as a table or grid?   Although it
is only a
	>grid/table by virtue of the implementation strategy.  There is
also an
	>imggroup role but I'm not sure that makes sense either?  Does
this even
	>need an additional role beyond the image map itself?
	If you are picking colors from a discrete palette, you might
consider a
	role of 'select' since it doesn't sound as though you would let
	be multi-selectable.
	>Becky Gibson
	>Web Accessibility Architect
	>IBM Emerging Internet Technologies
	>5 Technology Park Drive
	>Westford, MA 01886
	>Voice: 978 399-6101; t/l 333-6101
	>Email: gibsonb@us.ibm.com

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Received on Wednesday, 16 May 2007 10:39:26 UTC

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